<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>Functions</title>
<title>CMSIS-RTOS2: Functions</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="cmsis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="printComponentTabs.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
  $(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 46px;">
  <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
  <td style="padding-left: 0.5em;">
   <div id="projectname">CMSIS-RTOS2
   &#160;<span id="projectnumber">Version 2.1.3</span>
   </div>
   <div id="projectbrief">Real-Time Operating System: API and RTX Reference Implementation</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<div id="CMSISnav" class="tabs1">
    <ul class="tablist">
      <script type="text/javascript">
		<!--
		writeComponentTabs.call(this);
		//-->
      </script>
	  </ul>
</div>
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="pages.html"><span>Usage&#160;and&#160;Description</span></a></li>
      <li><a href="modules.html"><span>Reference</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('group__rtx5__specific__functions.html','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark">&#160;</span>Macros</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark">&#160;</span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark">&#160;</span>Pages</a></div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="summary">
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">Functions<div class="ingroups"><a class="el" href="group__rtx5__specific.html">RTX v5 Specific API</a></div></div>  </div>
</div><!--header-->
<div class="contents">

<p>RTX5 functions.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__rtx5__specific__functions.html#gaf1745a88f9cc60b609ab1c8076bd346d">osRtxErrorNotify</a> (uint32_t code, void *object_id)</td></tr>
<tr class="memdesc:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="mdescLeft">&#160;</td><td class="mdescRight">OS Error Callback function.  <a href="#gaf1745a88f9cc60b609ab1c8076bd346d">More...</a><br/></td></tr>
<tr class="separator:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga074068b8efa7074cee68a71481d0b072"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (void *argument)</td></tr>
<tr class="memdesc:ga074068b8efa7074cee68a71481d0b072"><td class="mdescLeft">&#160;</td><td class="mdescRight">OS Idle Thread.  <a href="#ga074068b8efa7074cee68a71481d0b072">More...</a><br/></td></tr>
<tr class="separator:ga074068b8efa7074cee68a71481d0b072"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaf1745a88f9cc60b609ab1c8076bd346d"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">uint32_t osRtxErrorNotify </td>
          <td>(</td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>code</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>object_id</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">code</td><td>The code to identify the error condition. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">object_id</td><td>A reference to any RTX object to identify the object that caused the issue, can be <span class="XML-Token">NULL</span>.</td></tr>
  </table>
  </dd>
</dl>
<p>Some system error conditions can be detected during runtime. If the RTX kernel detects a runtime error, it calls the runtime error function <b>osRtxErrorNotify</b> for an object specified by parameter <em>object_id</em>.</p>
<p>The parameter <em>code</em> passes the actual error code to this function: </p>
<table class="doxtable">
<tr>
<th>Error Code </th><th>Description  </th></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga42206aa2524b8fab613d26bea0f73c44">osRtxErrorStackUnderflow</a> </td><td>Stack overflow detected for thread (thread_id=object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga7377235f9fa3cedee06f682cd93f3e88">osRtxErrorISRQueueOverflow</a> </td><td>ISR Queue overflow detected when inserting object (object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#gaad420018f26e751ec55d3922a283beb0">osRtxErrorTimerQueueOverflow</a> </td><td>User Timer Callback Queue overflow detected for timer (timer_id=object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga14a24724f6e87744ba84674ef76e4256">osRtxErrorClibSpace</a> </td><td>Standard C/C++ library libspace not available: increase <code>OS_THREAD_LIBSPACE_NUM</code> </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#gac749c24b9cf6c49b392b015ed0517cfc">osRtxErrorClibMutex</a> </td><td>Standard C/C++ library mutex initialization failed </td></tr>
</table>
<p>The function <b>osRtxErrorNotify</b> must contain an infinite loop to prevent further program execution. You can use an emulator to step over the infinite loop and trace into the code introducing a runtime error. For the overflow errors this means you need to increase the size of the object causing an overflow.</p>
<p><b>Code Example</b> </p>
<div class="fragment"><div class="line"><span class="preprocessor">#include &quot;<a class="code" href="rtx__os_8h.html">rtx_os.h</a>&quot;</span></div>
<div class="line"> </div>
<div class="line">uint32_t <a class="code" href="group__rtx5__specific__functions.html#gaf1745a88f9cc60b609ab1c8076bd346d">osRtxErrorNotify</a> (uint32_t code, <span class="keywordtype">void</span> *object_id) {</div>
<div class="line">  (void)object_id;</div>
<div class="line"> </div>
<div class="line">  <span class="keywordflow">switch</span> (code) {</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga42206aa2524b8fab613d26bea0f73c44">osRtxErrorStackUnderflow</a>:</div>
<div class="line">      <span class="comment">// Stack overflow detected for thread (thread_id=object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga7377235f9fa3cedee06f682cd93f3e88">osRtxErrorISRQueueOverflow</a>:</div>
<div class="line">      <span class="comment">// ISR Queue overflow detected when inserting object (object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#gaad420018f26e751ec55d3922a283beb0">osRtxErrorTimerQueueOverflow</a>:</div>
<div class="line">      <span class="comment">// User Timer Callback Queue overflow detected for timer (timer_id=object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga14a24724f6e87744ba84674ef76e4256">osRtxErrorClibSpace</a>:</div>
<div class="line">      <span class="comment">// Standard C/C++ library libspace not available: increase OS_THREAD_LIBSPACE_NUM</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#gac749c24b9cf6c49b392b015ed0517cfc">osRtxErrorClibMutex</a>:</div>
<div class="line">      <span class="comment">// Standard C/C++ library mutex initialization failed</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">default</span>:</div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">  }</div>
<div class="line">  <span class="keywordflow">for</span> (;;) {}</div>
<div class="line"><span class="comment">//return 0U;</span></div>
<div class="line">}</div>
</div><!-- fragment --> 
</div>
</div>
<a class="anchor" id="ga074068b8efa7074cee68a71481d0b072"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void osRtxIdleThread </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>argument</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">argument</td><td>Unused parameter, always set to <span class="XML-Token">NULL</span>.</td></tr>
  </table>
  </dd>
</dl>
<p>The function <b>osRtxIdleThread</b> is executed by the RTX kernel when no other threads are ready to run.</p>
<p>By default, this thread is an empty end-less loop that does nothing. It only waits until another task becomes ready to run. You may change the code of the <b>osRtxIdleThread</b> function to put the CPU into a power-saving or idle mode, see <a class="el" href="theory_of_operation.html#TickLess">Tick-less Low-Power Operation</a>.</p>
<p>The default stack size for this thread is defined in the file RTX_Config.h. Refer to <a class="el" href="config_rtx5.html#threadConfig">Thread Configuration</a>.</p>
<dl class="section attention"><dt>Attention</dt><dd>The idle thread should never be blocked nor terminated! <b>Do not</b> call <ul>
<li>
blocking functions, </li>
<li>
<a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ga2f8ba6dba6e9c065a6e236ffd410d74a">osThreadTerminate</a>, or  </li>
<li>
<a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#gaddaa452dd7610e4096647a566d3556fc">osThreadExit</a> </li>
</ul>
and <b>do not</b> return from this function when providing a user defined implementation.</dd></dl>
<p><b>Code Example</b> </p>
<div class="fragment"><div class="line"><span class="preprocessor">#include &quot;<a class="code" href="rtx__os_8h.html">rtx_os.h</a>&quot;</span></div>
<div class="line"> </div>
<div class="line"><a class="code" href="cmsis__os2_8h.html#a153a4a31b276a9758959580538720a51">__NO_RETURN</a> <span class="keywordtype">void</span> <a class="code" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (<span class="keywordtype">void</span> *argument) {</div>
<div class="line">  (void)argument;</div>
<div class="line"></div>
<div class="line">  <span class="keywordflow">for</span> (;;) {}</div>
<div class="line">}</div>
</div><!-- fragment --> 
</div>
</div>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="footer">Generated on Wed Jul 10 2019 15:21:04 for CMSIS-RTOS2 Version 2.1.3 by Arm Ltd. All rights reserved.
	<!--
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 
	-->
	</li>
  </ul>
</div>
</body>
</html>
